test_temperament.py

from temperament import *
from nose.tools import *

def test_triad_mean_tempering():
    input = np.array([400.0, 700.0, 300.0])
    assert_equal(31.283, round(mean_tempering(input), 3))

def test_ratio_to_cents():
    assert_equal(386.3137, round(ratio_to_cents(5./4.), 4))

def test_key_tempering_error():
    intervals = np.array([[0, 4, 7], [2, 5, 9]])
    ideals = np.array([JUST_MAJOR_TRIAD, JUST_MINOR_TRIAD])
    tempering = key_tempering(EQUAL_TEMPERAMENT, intervals, ideals)
    assert_equal(31.283, round(tempering, 3))

def test_combinatorial_difference():
    input = np.array([90., 200., 300.])
    expected = [110., 210., 100.]
    assert_list_equal(expected, list(combinatorial_difference(input)))

def test_major_key_tempering_error():
    assert_equal(31.283, round(key_tempering(EQUAL_TEMPERAMENT, MAJOR_DEGREES, MAJOR_IDEALS), 3))

def test_mean_tempering_weights():
    input = np.array([400.0, 700.0, 300.0])
    weights = np.array([1., 1., 0.])
    assert_equal(15.641, round(mean_tempering(input, JUST_MAJOR_TRIAD, weights=weights), 3))

def test_interval_weights():
    weights = np.array([1., 1., 0.])
    assert_equal(16.619, round(key_tempering(EQUAL_TEMPERAMENT, MAJOR_DEGREES,
        MAJOR_IDEALS, weights=weights), 3))